Electronic cigarette power supply device



FIG. 1 is a front elevational view of an electronic cigarette power supply device showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left-side elevational view thereof;

FIG. 4 is a right-side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front, top, left perspective view thereof;

FIG. 8 is a rear, bottom, right perspective view thereof; and,

FIG. 9 is a partially enlarged view thereof as indicated in FIG. 7.

The broken lines in the drawings are for the purpose of illustrating unclaimed portions of the electronic cigarette power supply device and form no part of the claimed design. 

CLAIM The ornamental design for an electronic cigarette power supply device, as shown and described. 